Tube frame for axminster looms



Mardi 17. 1925.

R. G. TURNERA TUBE FRAME' FOR AXMINSTER Looms Filed June v 22, 1923 Patented Mar. 17, 1925.

UNITED STAT-ES PATE NT CRGMPTQN &^ KNOWLES LQOM WDR-KS;

PORATlQN OF MASSAGHUSETTS:

TU ULB AXMNSTEB. LQ OMS,

Aprlcatonkf. 11111;@ 22, 192,3- Serial TEO-1647A@- 7'0 all, whom z'zmez/ concern:

Be it known that I', RoHARD @ATURNEK a citizen ofthe United States, residing at Vorcester, in the CountybfWorcester and State of'Massachusetts, have i'nveni'leday new and useful Tube rame forr Axminster Looms, of which the following is a specifica; tion.

This inventionrelates to tnbe frames'used in connection withwide Axminster carpet looms and more particularly to quickly detachable means for holding; the usualspool supporting brackets to. thef ends ofl the 'hollow bar ordinarily forming the body ofwide tube frames. l to provide lfor holding the brackets to the tube frames withoutv the use of screws, etc.,y by providing a bracket held rigidly; to the frame by means of' detachable, clamping` means which" serves to holdl the bracket to the frame by friction. By such a` construction an imperfect Abracket may be` readily removed andvv a perfect, onel substituted therefor.

Another-object; of theinvention is to provide means for removably securing the chai-I1Y engaging springt hooks to the tube frames by. extending one endf of they spring into the tube and' holding'ittightly Aby vthe same means employed to hold the bracket in place.V

Vith these and other objects which will appear as the description proceeds the invention resides in the combinations andar/rangement of parts hereinafterdescribedandr set forth in the claims- Referring to, the drawings,l wherein two forms ofl bracket and clamping'fmeansv are shown,

F ig. 1 is a front elevation of a tube frame having kthe preferred form off the invention applied thereto,

Fig. 2 isan. enlarged vertical longitudinal section through one end' of the tube frame shown in Fig, 1

lig,v 3 is a vertical section on line of Fig. Ll represents a front and si'de eleva;

l tion of the I'JreferredJ formA of clamp,

Fig. 5 is a View similar'tgo Fi'g, 2 butshowing aV modified form of the invention,

Eig, 6 is a section on line 'vofFig, 5, and

An'object of the inventionis Fig. 7; is a front elevation of the'modified; formof clamp shown Vin Fig. A5'. 'l

Referring to Figs@ l-l;` ofthe drawings, the tube frame ismsliovvn` as formed of" a hollow metallic ban l0 to which. are secured the ordinary yarn tubes 11j which receive yarn fromspools 12; xminsterV looms ofA the type which employ'tube frames are-pro; vided with two continuous chains-,4 (notshown on theV drawings) one aft-eaehsi'd'e of the loom, to which the framesjare detachably held'l by means of brackets and springs 14'. The spools l2=`are mounted'- in; end bearings A15 carried' bythe brackets.

In Carrying out thepreferred form ofimyv invention, I' form'v each `bracket with,` arms 2O:`

and 21, both ofwhieh extend `intothe hollow Y barV l0; Ar1n121 `isinthis instance formed with the bearing member l5, the lattery be-V ing welded?,` rivetedf'or'4 otherwise `A secured toi the bracket while arm 20m-formed* integral with" the bracket-13; The 'bracketE isfpro: vided with a slot 22`tl1rough which extends the-bentend 2 3 ofthe spring: 14', said bent endproj eating into the hollow bar-Uand-lying parallel to arm 20. A boss 241C pressed up. from the bracket 13 'passes-:through: a hole punched'vin the spring 14E and positions the latter for -properenga gement -withfoperatng partsv oftheloom (notshzown. k

` Bracket 13 is helidlto the: means. of a clampingblock 25'1`substantiallfy1of1 the form shown in' Figs. 2 and 4, where-*said block is shown as lliayingal ler'igthx greater than its width.. 'The ends of* the;I bloekfare roughened asi at to prevent'- tlae block from: jarring loose-:from the position shown in Fig. 2. A non-circular aperture 26 is formed'n the block vand affords a means for rotating the bloc/kon its'omnf. axis. In order toy prevent the; accidental displacement o-f-the block during-'assembly of the parts, arm; 20

is bent toward arm 2l' as...y at the dis'.- I

tance between the ends. of-theaarms being lessthan the least dimension of the block 25.

When applying the bracket to the-tubular bar, the bracket, spring hookqand bl'ock are-v ioo , serted in the bary 10 'and the bracket moved the longer axis of the block plusthe thick-v ness of arms 20 and 21, together with end 23 of the spring is slightly greater than the distance between the top and bottom walls Vof bar 10. The end 23 of the spring`14 is located between the clamp and arm 2() and is thus held in place.

The modified form shown in Figs. 5,6 and 7 employs a somewhat different form of clamping.. block andl the arms fromY the bracket are located one inside and the other outside the tube. Y

Bracket carries arms 31 a'ndr32, the former similar to arm 20 Vexcept for an additional boss 33 to pass through bent end 34 of spring 35 and the latter v arm having struck therefrom ears 36 to enter correspon ding openings 37 formed in tube 38.

)The modified block 39. has curved surfaces 40 which are continuous with parallel plane faces 41 each ofwhich extends on opposite sides of a line passing through the center of the clamp yand normal to faces 41. The/'distance between faces 41 is less than the distance between corners 42 or the points where faces 41 connect with the curved faces me ans The modifiedform is assembled'in a` man-i ner similar tothe preferred form, the blockV being placed on one ofvits long sides between the arm 31 and end 34 of the spring 35. Arm 31 is then inserted'in the tube and the bracket lowered so that ears 36 fit into their respective openings 'in the tubular bar 38. By means of a suitable tool inserted inY noncircular aperture 43 in block 39 the latter is turned clockwise (as viewed in Fig. 5) until the faces 41 lie flat against adjacent parts. y

' The parts'are so proportioned that Awhen in the position shown in Fig. 5 block 39 will force the arms 31 and 32 against' the bar and hold the same in position by friction. Be-

cause of the relation` of faces 40 and 41, and

corners 42, the' block is locked and accidental removal of the bracket due to loosening of the block is prevented.V

From the foregoing description it is ap-` parent that I have provided a very simple for holding 'spool bearing brackets to tube frames, the fastening and unfastening of the parts being readily accomplished by the partial rotation of a clamping block which is located in the tube frame where it will not be engaged by the parts of the loom which operate on thetube frame. Also, the spring hook is held in place by .the clamping block without the use ofscrews, etc.

Having thus described vmy invention it will be evident that changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope thereof as set forth in the claims, and I do ,notwish to be otherwise limited to the details set forth herein, but what I claim 1. In a tube frame vfor Axminster looms, a hollow tubular, member,-a spool supporting bracket, an arm rigid therewith extending along a portion of the tubular member, and clamping means to frictionally hold the arm tothe member,said means including an element housed in said tubular member and rotatable on its own axis either to clamp said member and arm together orto release said arm from the tubular member.

2. In a. tube frame for Axminster looms, a tubular member, a spool supporting bracket having an arm extending into the member, anda clamping block located within the member and interposed between said arm and a portion of .the-tubular. member, said block being movable angularly with respect to the arm and member and serving when turned to force the arm against the'tubular member. y y Y 3. In a tube frame for Axminster looms, a hollow tubular member, a. spool supporting bracket having an armr extending into said member, and a clamping block located within the memberarranged to be tight and loose with respect tothe arm vand member, said blOCkbeingfOrmed with a non-circular portion accessible through an opening in the tubular member Aby means of which the block may beturned to be either tight or loose with respect to said arm and member. Y 4. In Va tubeframe for Axminster looms, a hollow tubular member, a spool supporting bracket having a pair of armsY extending therefrom and intothe tubular member, and a clamping block located in the tubular member and between the arms and being movable angularlywith respect to-thearms to forcesaid arms against the tubular membracket, a spring hook, said bracket an hook having portions extending into the tubular member, and means located Within the member and having a portion thereof, accessible through an opening in the member for frictionally holding said bracket and hook to said tubular member.

7. In a tube frame for Axminster looms, a tubular member, a bracket having a positioning boss thereon, a spring having an opening therein to receive said boss, the end of the spring projecting into the tubular member, and means within said member to hold said end of the spring.

8. In a tube frame for Axminster looms, a tubular member, a spool supporting bracket having an arm extending therefrom into the member, a clamping block located in the member and arranged to be tight or loose with respect to said arm, and means to retain the block When loose With respect to said arm, said means being independent of the block when the latter is tight With respect to said arm.

9. In a tube frame for Axminster looms, a hollow tubular member, a spool supporting bracket having a pair of arms thereon and extending into said member, and a clamping block located between the arms and forcing the arms against the member, lthe distance between the ends of the arms being less than the least dimension of the block.

10. A holding block for hollow Axminster tube frames having brackets with arms ex tending along portions of the frame and having an opening therein, said block being of greater dimension in one direction than in the other, andhaving a portion accessible through the opening in the frame by which said block may be rotated to cause the greater dimension thereof to lie substantially perpendicular to said arms of the bracket to force said arms against adjacent portions of the frame.

ll. In a tube frame for Axminster looms,

a tubular member, a bracket having arms thereon extending along portions of the member, and a block rotatable on its ovvn axis in engagement with at least one of said arms to hold the same against said member by friction, said block being of greater length than breadth and having spaced points on each end thereof to engage parts adjacent thereto.

In testimony whereof I have hereunto affixed my signature.

RICHARD GREENLEAF TURNER. 

